Algorithm in C++
The finite set of steps arranged sequentially, which acts as a guide to solve any problem. This c++ algorithm word is particularly used in computer science to define the procedure for solving complex problems. The architecture of the solution can be different for different algorithms. The most efficient algorithm is the one that provides the solution in less time and consumes less memory in comparison to other algorithmic solutions. In the C++ header <algorithm> contains the functions designed to operate on the number ranges. These functions operate on the number, but do not make any manipulations to the data. It just works while iterating or pointing to the numbers without touching its data.
Some member functions under <algorithm> header are:
- algorithm::adjacent_find(): Points the first occurrence of two identical consecutive numbers.
- algorithm::all_of(): Returns true if the numbers lie under the range of first and last elements.
- algorithm::binary_search(): Checks if the “value to be searched” is present in the sorted sequence or not.
- algorithm::copy(): This function helps in copying a range of elements from one location to the new location.
- algorithm::count_if(): This function returns the number of occurrences of particular elements if the condition mentioned in “if condition” is satisfied.
- algorithm::equal(): This function tests whether two sets of elements are equal or not. There are a lot of similar functions predefined in C++ which can be sued by coders in the advantage of their business.
· 1. Heap: In such types, we construct a heap to find out the max or min value of the sequence. This used the data structure of trees to achieve its output.
· 2. Binary Search: This C++ algorithm divides the whole sequence into two parts iteratively until it finds the actual value we are searching from the targeted sequence. It is a highly effective algorithm as it reduces time by half. The preliminary condition to use this C++ algorithm is that the sequence provided to it should be sorted in any order.
· 3. Sorting: There are different types of sorting that can be used to generate the sorted sequence. They are insertion sort, bubble sort, selection sort, heap sort, quick sort, merge sort. Some of these algorithms work on the principle of “divide and rule” like merge and quick sort. These are quick and efficient in comparison to others, although uses more memory in their operations.
· 4. Simple Operations Over the Sequence: Algorithms can be used to perform simple operations like to replace, remove, reverse the numbers in a sequence. There are many ways to reach this output using different algorithms all aiming to achieve the same output.
5. Non-modifying Operations: Some operations like search, find, count the number of elements in the sequence. These operations do not modify the data values of the element, but function around these elements.
C++ algorithm is a detailed step by step generic solution guide which is designed keeping in focus to provide the most efficient and less time-consuming solution to any problem provided. There are many tools to check the efficiency of algorithms like big Oh notation, Omega or Gama notations which is useful to find the efficacy of algorithms. Every algorithm has its own privilege and advantages and we choose the right fit solution as per the problem statement. This plays a crucial role when we design a solution for the problem as it becomes the base of the final product’s performance.
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